Boiler-setting



(No Model.) Y

F. G. GASCHE. BOILBR SETTING.

Patented Dec. 20, 1892-.

00.06000 OO OOOGO kms PErEns 01:1.A Pumumo.. wAsHxuc-Tc Snrns FERD GUYGASCI-IE, OF CHICAGO, ILLINOIS.

BOILER-SETTING.

SPECIFICATION forming part of Letters Patent No. 488,241, dated December20, 1892.

Application iiled September 19, 1891. Serial No. 406.274. (No model.)

.To all whom it may concern:

Be it known that I, FEED GUY GAscHn, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Boiler-Settings; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

Myinvention relates to improvements in boiler settings, which areadapted to burn liquid or oil fuel.

The object of my invention is to provide a boiler setting,which isadapted to produce the highest development of heat, from a givenquantity of oil, and in Which the said heat, is imparted to the boiler,and utilized in the most efficient manner. I attain these objects by themeans set forth in the following specification and claims, referencebeing had to the accompanying drawings in which Figure l is a verticallongitudinal section 0f my improved boiler` setting, taken 011 the planeindicated by the dotted line M. M. of Fig. 2. Fig. 2, is an endelevation partly in section. Fig. ,3, is a transverse section taken 0nthe dotted line Z. Z. of Fig. 1. Fig. 4f, is a transverse section takenon the dotted line X. X. of Fig. l. Fig. 5, is a detached front view ofthe air admission box, and, Fig. 6, is a section of the same on thedotted line Y. Y. of Fig. 5.

Referring to the drawings, l, designates the boiler,which as here shownis of the horizontal tubular type, and is supported by brackets upon theside Walls of the setting in the usual manner.

2 is a steam jet oil burner, preferably of the Reid type, and adapted togivea long round flame. Any number of said burners may be used for whichthe setting is designed. The said burners are connected to the oil main3, by means of a small pipe 4, and to the boiler by the steam jet pipe5, in which is a cock or valve 6, adapted to admit steam to the burner.

7 is the air induction box-cover which is hinged to the top of the airbox S. Said cover is adapted to be adjusted by means of the hand lever9, and is held in position by frictional contact against the curvedspring arm 10, the arrangement being susceptible of accurate adjustment.The air-boxes are inserted through the boiler front and setting at thebottoni thereof, and discharge at their inner ends into chambers l1. Thetop, sides and bottom of said chambers are formed of firebrick, and areadapted to act as screens to protect the air openings from the heat, theends of said chambers being open for the passage of the air to theburners, and to the mixing or combustion chamber l2.' The said mixingchamber is made as large as is possible Within practical limits, for thepurpose of retarding the flow of the air, and thus to provide time forthe thorough admixture of the air .and oil vapors, and which isessential for complete and perfect combustion. The bridge Wall 13, isprovided with conical openings 14, which are approximately U-shaped andwhich correspond in numbers with theuumber of burners used, the axis ofsaid conical openings being coincident With the centerline of theburners. The flame from the burners in passing through the mixingchamber into the said conical openings exerts or produces an injectoraction upon the surrounding air, causing it to coalesce more intimatelyWith the oil vapors, and thus prevent an undue amount or excess of airfrom passing through said openings.

15 is a chamber which extends from the rear of the bridge Wall, to thetop of the tubes or fines, at the rear end of the boiler, the saidchamber having a gradual increase in size for the greater part ot' itslength, the ratio of increase being suiiicient to provide for the freeexpansion of the gases,due to the higher temperature which they assume,as they approach to complete combustion. rlhe expanding form of saidchamber is a valuable feature of my invention, and gives importantresults, as by expansion the heated gases have a reduced velocity, andconsequently more time in which to impart their heat to the boiler.There is also a minimum of frictional resistance against the l Walls ofthe setting thereby.

16 is an arch, Which extends across the expandingchamber, seen clearlyin Fig. 4, adapted to support the brick Work which incloses the rear endof the boiler, and by reason of which all of the gases or products ofcombustion are compelled to pass under the said arch, for which there isample room provided. The

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arch is further adapted to protect the edge of the tube sheet from theintense heat, and is a desirable feature ot' the setting.

The boiler and setting are provided With the 4 usual fittings andappliances,andwhich need no description, the setting being made asnearly air tight as is possible, so that all of the air must enterthrough the air boxes at the front.

It will be seen from the foregoing description, that I employa largemixing or combustion chamber, in which the air and oil vapors have timeto unite, and from which the flames from the burners are projectedacross said chamber and pass through conicall openings in the bridgewall, into the free space of the expanding chamber,.and that all of thepassages, are of ample dimensions,I so that the products of combustionare unimpeded in their progress to the chimney.

Having described my invention, I claim:-

l. In a boiler setting for liquid or oil fuel the combination of acombustion and mixing chamber, an injector burner adapted to dischargeacross said mixing chamber,a conical outlet in line with the axis ofsaid burner,and a combustion chamber communicating with the said conicaloutlet and gradually increasing in size toward its rear end,the sizeofthe conical outlet between the combustion and mixing chambers beingsufficient for the passage of the column of flame `from the burner andyet to prevent material accession of lair to the combustion chamber, asandV for the purpose specified.

2. In a boiler setting for liquid or oil fuel the combination of acombustion and mixing chamber provided with air induction chambers, aninjector burner adapted to discharge across said mixing chamber, aconical outlet in line with the axis of said burner, and a combustionchamber colnmunicating with said conical outlet, said combustion chambergradually increasing in size toward its rear end, and an arch betweenthe sides of said combustion chamber at the rear end of the boiler, asand for the purpose specified.

3. In a boiler setting for liquid or oil fuel the combination of acombustion and mixing chamber-airinlets for said mixing chamber providedwith adjustable covers, an injector burner adapted to discharge` acrosssaid mixing chamber, a conical outlet in line with the axis of saidburner, and a combustion chamber communicating with said conical outlet,

and gradually increasing in size toward its rear end, and an arch acrosssaid combustion chamber at the rear end of the boiler, as and for thepurpose speciiied.

In testimony whereof I ax my signature in presence of two Witnesses.

FERD GUY GASOHE.

Vitnesses:

Doc BALLINGEE, WM. M. JoHNsoN.

